21387907905984
21,387,907,905,984 is an even composite number composed of four prime numbers multiplied together.
21387907905984 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of two hundred fifty-two divisors.
Prime factorization of 21387907905984:
26 × 32 × 732 × 1913
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 73 × 73 × 191 × 191 × 191)See below for interesting mathematical facts about the number 21387907905984 from the Numbermatics database.
Names of 21387907905984
- Cardinal: 21387907905984 can be written as Twenty-one trillion, three hundred eighty-seven billion, nine hundred seven million, nine hundred five thousand, nine hundred eighty-four.
Scientific notation
- Scientific notation: 2.1387907905984 × 1013
Factors of 21387907905984
Divisors of 21387907905984
- Number of divisors d(n): 252
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 73 96 144 146 191 192 219 288 292 382 438 573 576 584 657 764 876 1146 1168 1314 1528 1719 1752 2292 2336 2628 3056 3438 3504 4584 4672 5256 5329 6112 6876 7008 9168 10512 10658 12224 13752 13943 14016 15987 18336 21024 21316 27504 27886 31974 36481 36672 41829 42048 42632 47961 55008 55772 63948 72962 83658 85264 95922 109443 110016 111544 125487 127896 145924 167316 170528 191844 218886 223088 250974 255792 291848 328329 334632 341056 383688 437772 446176 501948 511584 583696 656658 669264 767376 875544 892352 1003896 1017839 1023168 1167392 1313316 1338528 1534752 1751088 2007792 2035678 2334784 2626632 2663113 2677056 3053517 3069504 3502176 4015584 4071356 5253264 5326226 6107034 6967871 7004352 7989339 8031168 8142712 9160551 10506528 10652452 12214068 13935742 15978678 16285424 18321102 20903613 21013056 21304904 23968017 24428136 27871484 31957356 32570848 36642204 41807226 42609808 47936034 48856272 55742968 62710839 63914712 65141696 73284408 83614452 85219616 95872068 97712544 111485936 125421678 127829424 146568816 167228904 170439232 191744136 194407249 195425088 222971872 250843356 255658848 293137632 334457808 383488272 388814498 445943744 501686712 508654583 511317696 583221747 586275264 668915616 766976544 777628996 1003373424 1017309166 1166443494 1337831232 1525963749 1533953088 1555257992 1749665241 2006746848 2034618332 2332886988 3051927498 3110515984 3499330482 4013493696 4069236664 4577891247 4665773976 6103854996 6221031968 6998660964 8138473328 9155782494 9331547952 12207709992 12442063936 13997321928 16276946656 18311564988 18663095904 24415419984 27994643856 32553893312 36623129976 37131784559 37326191808 48830839968 55989287712 73246259952 74263569118 97661679936 111395353677 111978575424 146492519904 148527138236 222790707354 292985039808 297054276472 334186061031 445581414708 594108552944 668372122062 891162829416 1188217105888 1336744244124 1782325658832 2376434211776 2673488488248 3564651317664 5346976976496 7129302635328 10693953952992 21387907905984
- Sum of all divisors σ(n): 62483005084032
- Sum of proper divisors (its aliquot sum) s(n): 41095097178048
- 21387907905984 is an abundant number, because the sum of its proper divisors (41095097178048) is greater than itself. Its abundance is 19707189272064
Bases of 21387907905984
- Binary: 1001101110011110000101010011100111001110000002
- Hexadecimal: 0x1373C2A739C0
- Base-36: 7KXGW5BK0
Squares and roots of 21387907905984
- 21387907905984 squared (213879079059842) is 457442604594852891783008256
- 21387907905984 cubed (213879079059843) is 9783740299348167009399247068697143803904
-
The
square root of 21387907905984 is 4624706.2507778805 -
The
cube root of 21387907905984 is 27758.0807702091
Scales and comparisons
How big is 21387907905984?- 21,387,907,905,984 seconds is equal to 680,069 years, 16 weeks, 2 days, 9 hours, 26 minutes, 24 seconds.
-
To count from 1 to 21,387,907,905,984 would take you about one million, seven hundred thousand, one hundred seventy-three years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 21387907905984 cubic inches would be around 2313.2 feet tall.
Recreational maths with 21387907905984
- 21387907905984 backwards is 48950970978312
- 21387907905984 is a
Harshad number . - The number of decimal digits it has is: 14
- The sum of 21387907905984's digits is 72
- More coming soon!
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The information we have on file for 21387907905984 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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